Fault Finding - Rinnai REU-2018W Service Manual

16. Fault Finding

If there is a fault with the appliance, and controllers are installed, a numerical fault code may appear on the
digital display controller. If controllers are not installed, one may be fitted to find out the fault code. Fault
finding without controllers (and thus fault codes) is possible but more time consuming.
To diagnose and rectify faults, the Fault Finding Table is used as illustrated below:
Fault Finding Table
Describes possible faults
and error codes.
(page 26)
Operational
Flow Chart
(page 21)
Infinity REU-2425W
Component Circuit Value Table / (page 29)
Summarises running and standby electrical values
Wiring Diagram
(page 30) Monitor / Error History
combustion time, history of
Electrical Component Table (page 40)
for all components.
Maintenance
Provides accumulated
number of startups,
operational faults and
readout of electrical values
whilst unit operational.
(page 27)
- 25 -
Fault Diagnosis
Procedures
Detailed information on
how to check all
components.
(page 31)
Dismantling for
Service
Detailed information on
how to remove and
replace components.
(page 45)
Issue 2 - 5/07/04 ©Rinnai